Myrtaceae revisited: a reassessment of infrafamilial groups

Wilson, P.G., O'Brien, M.M., Gadek, P.A., and Quinn, C.J. (2001) Myrtaceae revisited: a reassessment of infrafamilial groups. American Journal of Botany, 88 (11). pp. 2013-2025.

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Cladistic analyses are presented of matK sequence data as well as a nonmolecular database for an identical set of exemplar species chosen to represent the core genera or groups of genera in Myrtaceae. Eleven robust clades are recognized on the molecular data. Polyphyly of the previously recognized Metrosideros and Leptospermum alliances is confirmed, and several smaller informal taxonomic groupings are recognized from among the members of the former alliance, i.e., the Tristania, Tristaniopsis, Metrosideros, and Lophostemon groups. The nonmolecular analysis provides only limited resolution of relationships. A degree of congruence exists between the two analyses in that two separate fleshy-fruited clades, the Acmena and Myrtoid groups, are identified, as are the Eucalypt and Tristania groups, and Psiloxylon and Heteropyxis are the first lineages to diverge in both analyses. A combined analysis recognized all 11 clades that received strong support from the molecular data. A high level of homoplasy is revealed in many of the nonmolecular characters when they are examined against the combined estimate of phylogeny.

Item ID: 13066
Item Type: Article (Research - C1)
ISSN: 1537-2197
Keywords: MatK; molecular phylogeny; morphology; Myrtaceae
Date Deposited: 28 Feb 2013 01:33
FoR Codes: 06 BIOLOGICAL SCIENCES > 0603 Evolutionary Biology > 060399 Evolutionary Biology not elsewhere classified @ 100%
SEO Codes: 97 EXPANDING KNOWLEDGE > 970106 Expanding Knowledge in the Biological Sciences @ 100%
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